SUSTAINED-RELEASE PREPARATION CONTAINING 5-ACETYL-4,6-DIMETHYL-2- 2- 4-(2-METHOXYPHENYL)PIPERAZINYL]ETHYLAMINO]PYRIMIDINE TRIHYDROCHLORIDE AS ACTIVE INGREDIENT
申请人:ONO PHARMACEUTICAL CO., LTD.
公开号:EP1334723A1
公开(公告)日:2003-08-13
A sustained-release formulation of 5-acetyl-4,6-dimethyl-2-[2-[4-(2-methoxyphenyl)piperazinyl]ethylamino]pyrimidine trihydrochloride coated with a release-controlling film comprising a water-insoluble polymer film having no hydrophilic group. The formulation of the present invention has such a release pattern that the drug release lasts for 20 hours or more, so that can be appropriately administered for treatment. Furthermore, the formulation itself is so stable that its release pattern does not change with pH and the formulation does not suffer from deterioration, coloration and the like with the lapse of time.
一种 5-乙酰基-4,6-二甲基-2-[2-[4-(2-甲氧基苯基)哌嗪基]乙基氨基]三盐酸嘧啶的缓释制剂,该制剂涂有一层释放控制膜,该膜由不含亲水基团的水不溶性聚合物膜组成。本发明的制剂具有这样一种释放模式,即药物释放可持续 20 小时或更长时间,因此可以适当地用于治疗。此外,本发明制剂本身非常稳定,其释放模式不会随酸碱度的变化而改变,也不会随着时间的推移而变质、变色等。